Features:The universal usb connection is let you to swap out batteries easily.5v safe voltage, can be compatible with most charging treasures on the market.Thick and warm velvet lining which is very soft for winter, this thermal heated pants will help you to withstand cold winter.Elastic waistband for durability, long-lasting fit for another year or more.Pocket is convenient to place your power banks. Package Includes:1x Heated Pants Specifications:Material: Mirco VelvetSize:M Trousers Length: 39.37 Inch(100cm) Waist: 28.34 Inch(72cm) Foot Circumference: 11.33 Inch(28.8cm) Front Crotch Line: 10.19 Inch(25.9cm)Size:L Trousers Length: 40.15 Inch(102cm) Waist: 29.92 Inch(76cm) Foot Circumference: 11.81 Inch(30cm) Front Crotch Line: 10.43 Inch(26.5cm)Size:XL Trousers Length: 40.94 Inch(104cm)Waist: 31.49 Inch(80cm)Foot Circumference: 12.28 Inch(31.2cm) Front Crotch Line: 10.66 Inch(27.1cm)Size:2XL Trousers Length: 41.73 Inch(106cm) Waist: 33.07 Inch(84cm) Foot Circumference: 12.75 Inch(32.4cm) Front Crotch Line: 10.90 Inch(27.7cm)Size:3XL Trousers Length: 42.51 Inch(108cm) Waist: 34.64 Inch(88cm) Foot Circumference: 13.22 Inch(33.6cm) Front Crotch Line: 11.14 Inch(28.3cm)Size:4XL Trousers Length: 43.3 Inch(110cm)Waist: 36.22 Inch(92cm)Foot Circumference: 13.7 Inch(34.8cm) Front Crotch Line: 11.37 Inch(28.9cm) note:Please allow 1-2cm errors due to manual measurement.Due to the difference between different monitors, the picture may not reflect the actual color of the item.Each garment is measured by hand, and there may be an error of 1-2cm.Everyone's body shape is different, and their dressing preferences are different. Please choose your clothes size according to your body shape and dressing habits.Due to the difference between different monitors, the picture may not reflect the actual color of the item.